Lock-washer.



H. J. HIPPLB.

LOGK WASHER.

APPLIGATIQN FILED 0013.24, 1913.

1,1 30,28u Patented Mar. 2, 1915.

WITNESSES: INVENTOR g Harvey Q/acob Hippe,

HARVEY J'. HIPPLE, 0F LANCASTER, PENNSYLVANIA.

LOCK-WASHER.

Specification of Letters Patent.

Patented Mar. 2, 1915.

Application filed October 24, 1913. Serial No. 796,982.

To all whom it may concern.-

Be it known that I, HARVEY J. HIPPLE, a citizen of the United States,residing at Lancaster, in the county of Lancaster and State ofPennsylvania, have invented certain new and useful Improvements in Look-IVashers, of which the following is a specifi-. cation, reference beinghad therein to the accompanying drawing.

This invention relates to a lock-washer, such as is used with bolts orcap-screws, and it comprises a combination of locking means which may beused independently or together, as found most desirable and convenient,depending upon the application of the bolt or cap-screw.

While I am aware that both have before been employed for this purpose, Ihave a keyway which is engaged by a lock-washer as shown in LettersPatent No. 1,049,234, granted to me on December 81, 1912.

lhe object of the invention is to provide a combination lock-washerwhich used with a bolt provided with a longitudinal keyway may be usedto retain either a square or hex head nut of the ordinary type as wellas the castellated nut.

Another object of the invention is to provide a lock-washer that shallbe cheap and durable, and capable of repeated wear.

With these and other objects in view, my invention consists in certainconstructions and combinations of parts as will hereinafter be fullydescribed and claimed in this specification and illustrated in theaccompanying drawings, which form a part of this application; and inwhich like figures of reference refer to corresponding parts in all ofthe views; but it is fully understood that while I have here describedmy device as shown, that I do not confine myself to the exact design, asslight changes may be made in the construction and arrangement of theseveral parts without dearting from the spirit of the invention asdefined by the appended claims.

In the drawings :Figure 1, is a side elevation of a bolt, showing myimproved washer as applied to a castellated nut. Fig. 2, is a similarview, showing the application to a square head nut. Fig. 3, is an endview of the lock-washer removed from the bolt. Fig. 4, is a sideelevation of the same. Fig. 5, shows a washer upon which threads are cutby the nut.

Referring to the drawings, the device comprises in combination witha'bolt l, having a longitudinal keyway 2, and provided with a nut 3, ofa lock-washer having a bolt enclrcling portion 4, terminating at one endin a projecting portion 5, lying in the keyway and extending beyond theend of the bolt; while the other end extends outward on the same planeas the portion 4-, and is bent back upon itself as at 6, and the endthen extending at right angles and entering the keyway as at 7. g

In use the nut is turned down upon the portion 4, which acts as a washerand cushioning means between the nut and the object to be fastened. Theportion 6, is then bent up against one of the faces of the nut; and theportion 5, is bent downward into one of the notches in a castellatednut, or if a plain nut is used this portion 5, may be cut off, ifdesired. For removing the nut, the portions 5, and 6, are bent back totheir original positions, allowing the nut to be removed from the bolt.

As a further means of keeping the nut tight upon the bolt, and as shownin Fig. 5, I construct the washer from semi-soft material and of aslightly greater diameter in cross-section than the depth of the slot inthe bolt, so that when the nut is screwed or turned down upon the boltit will cut out portions of thread upon the straight portion of thewasher which lies in the keyway to correspond and register with thethreads upon the bolt, and in this manner all longitudinal movement ofthe washer with respect to the bolt is prevented.

Having thus described my invention what I claim as new, and desire tosecure by Letters Patent is 1. In a lock-washer of the class described,the combination with a bolt having a keyway, of a washer formed with abolt encircling portion, a keyway engaging portion, and an extendingportion adapted to be bent against the side of a nut, and an extendingportion adapted to be bent into engagement with the notches of acast-ellated nut, for the purpose of preventing the nut from turning onthe bolt.

2. In a device of the class described, the combination of a bolt havinga longitudinal keyway, a threaded nut engaging the same, a lockingdevice comprising a strip of malleable material surrounding the bolt andhaving one end engaging the keyway and projecting from the end of thebolt, and

adapted to be bent into engagement with the castellation of the nut, andthe other end extending outwardly at right angles to the bolt forming aloop adapted to be bent into engagement with one of the faces of thenut, and the return end ofsaid loop engaging the key'way in the bolt. 7

3. In a device of the class described, the

combination of a'bolt having a longitudinal keyway, a threaded nutengaging the same, of a locking device comprising a strip of malleablematerial surrounding the bolt and having a body-portion lying in saidkeyinto one of the ca'stellations of said nut.

In testimony whereotl aflix mysigna' 20 ture 1n presence of twoWitnesses.

HABVEY J. HIPPLE. V

Witnesses: I WM. J.COULTER, JOHN J. THOMPSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of intents. i

Washington, D. 0." i

